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MCQs 1: The principle of virtual work can be applied to elastic system by considering the virtual work of_________________?

internal forces only external forces only internal as well as external forces none of the above
Answer Explanation

MCQs 2: The number of independent displacement components at each joint of a rigid-jointed space frame is_______________?

1 2 3 6
Answer Explanation

MCQs 3: The degree of static indeterminacy of a rigid-jointed space frame is_________________?

m + r – 2j m + r – 3j 3m + r – 3j 6m + r – 6j
Answer Explanation

MCQs 4: The number of independent equations to be satisfied for static equilibrium in a space structure is___________________?

2 3 4 6
Answer Explanation

MCQs 5: A pin-jointed plane frame is unstable if________________?

(m + r)<2j m + r = 2j (m + r)>2j none of the above
Answer Explanation

MCQs 6: Independent displacement components at each joint of a rigid-jointed plane frame are_________________?

three linear movements two linear movements and one rotation one linear movement and two rotations three rotations
Answer Explanation

MCQs 7: Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is__________________?

2 3 6 8
Answer Explanation

MCQs 8: If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by__________________?

m + r + 2j m – r + 2j m + r – 2j m + r – 3j
Answer Explanation

MCQs 9: The number of independent equations to be satisfied for static equilibrium of a plane structure is__________________?

2 2 3 6
Answer Explanation

MCQs 10: In the slope deflection equations, the deformations are considered to be caused by________________?
i) bending moment
ii) shear force
iii) axial force
The correct answer is

only (i) (i)and(ii) (ii) and (iii) (i), (ii) and (iii)
Answer Explanation

MCQs 11: To generate the j the column of the flexibility matrix________________?

a unit force is applied at coordinate j and the displacements are calculated at all coordinates a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates a unit force is applied at coordinate j and the forces are calculated at all coordinates a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
Answer Explanation

MCQs 12: For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal________________?
i) of a stiffness matrix must be positive
ii) of a stiffness matrix must be negative
iii) of a flexibility matrix must be positive
iv) of a flexibility matrix must be negative
The correct answer is

(i) and (iii) (ii) and (iii) (i) and (iv) (ii) and (iv)
Answer Explanation

MCQs 13: Study the following statements?
i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy
ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy
iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy
iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy
The correct answer is?

(i) and (iii) (ii) and (iii) (i) and (iv) (ii) and (iv)
Answer Explanation

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